We did some research into that school in 1999. At that time, the city of Boca Raton's zoning did not permit fraternity housing. I doubt that this has changed, but it could have. Also, there was talk of a university built greek row, but it was just talk. These two factors limit the dynamism of the greek system, but I've got a hunch that the school will eventually build an on-campus greek row.
Here's their web site for greek affairs:
http://www.fau.edu/student/greek/greek.htm